"TECHNOLOGY & ENGINEERING / Lasers & Photonics" . . "Ponderomotorische Kraft." . . "Atom." . . "Feixes de laser." . . "Laserstrahlung." . . "Quantum optics." . . "Laser beams." . . . . . . . . . . . . . "Electronic books" . . . . . . . . . . . . . . . "Mechanical action of light on atoms" . "Mechanical action of light on atoms"@en . . . . . . "Otica quantica." . .